(Scroll down for video) Two school employees are in trouble for having a sexual relationship with a student.

Police in Tennessee, arrested a high school teacher and a former member of the school board after being accused of having sex with the same 15-year-old girl.

70-year-old Ernest 'Tommy' Beechum and Richard Tyson, 43, were arrested on multiple charges, including sexual battery by an authority figure.

The Houston County Sheriff’s Office said that the men had no idea that the student was also involved with both of them.

Police said that they received a letter, which tipped them off to the relationship between Beechum and the student.

Police learned that Beechum, who was on the Houston County School Board for 24 years, has been having a sexual relationship with the 15-year-old girl for at least one year.

During their investigation, detectives saw that a cellphone number kept showing up in her phone records. When questioned about it, the girl gave different answers every time.

Authorities then found that the number belonged to Tyson, who was the girl’s history teacher. After being confronted with the information, she allegedly admitted to being in a relationship with him as well.

Both men were arrested and charged with sexual battery by an authority figure, sexual exploitation of a minor by an authority figure and solicitation of a minor by an authority figure.

Bail for Beechum was set at $100,000, while bail for Tyson was set at $75,000. They were also banned from going on school property.